Comtech EF Data DMD-2050E - Manual (Page 158)

DMD2050E Universal Satellite Modem External Connections
MN-DMD2050E Revision 2 5–6
5.3.4 ALARM (J15)
Label Description Connector Type
ALARM J15 Alarm Port 15-pin Female D
The Alarm port uses contact closures to identify the status of the unit. Pins 1 through 6 supply
Form C contacts for major alarm status on the modulator and demodulator.
Normally Open or Normally Closed conditions indicate a FAULTED or OFF state.
• C = Closed
• NO = Normally Open
• NC = Normally Closed
Table 5-4. Pinouts for J15 ALARM Port 15-pin Female D Connector
Pin No. Signal Name Signal Direction
1 Mod Fault - C MF-C No Direction
2 Mod Fault – NC MF-NC No Direction
3 Mod Fault – NO MF-NO No Direction
4 Demod Fault - C DF-C No Direction
5 Demod Fault – NC DF-NC No Direction
6 Demod Fault – NO DF-NO No Direction
7 Prompt - C CEF-C No Direction
8 Prompt – NC CEF-NC No Direction
9 Prompt – NO CEF-NO No Direction
10 Service – C SP1-NO No Direction
11 Service – NC SP1-NC No Direction
12 Service – NO SP2-NO No Direction
13 No Connect SP2-NC No Direction
14 AGC Out AGC No Direction
15 Ground GND ---
Use the front panel to set up Prompt and Service alarm summaries. Select one summary type for
each alarm type:
Prompt Alarms Summaries Service Alarms Summaries
a) Prompt alarms
b) Prompt and Tx Minor alarms
c) Prompt and Tx minor and Tx Major alarms a) Service alarms
b) Service and Rx Minor alarms
c) Service and Rx minor and Rx Major alarms